Movement isn't snappy using AddForce in my 2D game.

Unity Engine
1

So I am making a 2D platformer and I am making the movement of the player using AddForce, the problem is that the player slides and the movement isn’t snappy, how do I make a counter force that stops the player instead of sliding?

private void PlayerInput()
    {
        movementInput = Input.GetAxisRaw("Horizontal");
        isjumping = Input.GetButton("Jump");
    }

    private void Movement()
    {
        // check if on ground
        isGrounded();

        // if grounded and have extra jumps then jump
        if (isjumping && readyToJump && extraJumpsLeft > 0)
        {
            Jump();
        }

        // move player
        rb.AddForce(transform.right * movementInput * speed * Time.deltaTime);
    }
2

If they are sliding you can increase the friction on the rigidbody of the player or the ground objects.

3

I know that but the problem is that it slows down the overall movement which I don’t want + I have the friction of the player to 0 so that it doesn’t get stuck on the sides of walls

4

Cant you have the walls with a friction value of 0 and then the Player and ground have their own values?

5

Maybe, I will try it and see how it goes

6

You should have used rb.velocity in your code. At least that’s what I’d do.

But in case you wanna go with the current code, add this line of code after your rb.AddForce statement.

if(movementInput == 0)
{
rb.velocity = new Vector2(0, rb.velocity.y);
}

7

AddForce is pretty much the opposite of “snappy movement”.
If you need to use a Rigidbody/2D but want snappy movement, set its isKinematic field to true.

A kinematic body basically means it will still react to collisions, but it will not move on its own from external forces - you need to explicitly tell it how to move.
Rather than using AddForce, you would use MovePosition instead, which is pretty much identical to transform.Translate.

This will mean that you would need to calculate your own jumping/falling force logic, however, but a starting point would be something like this:

public class Example : MonoBehaviour {
  //isKinematic = true
  public Rigidbody2D body;

  //Standard Earth gravity force value. Can be changed for stronger/weaker gravity.
  public float gravity = -9.81f;

  public float jumpStrength = 10f;

  private Vector2 movement;
  private float currentVerticalForce;

  void Update() {
    float horizontalMove = Input.GetAxisRaw("Horizontal");

    if(IsGrounded()) {
      //As long as the player is grounded, there will be no vertical movement.
      currentVerticalForce = 0f;

      if(Input.GetButtonDown("Jump")) {
        //Once the player jumps, set the vertical movement to the initial jumpStrength.
        currentVerticalForce = jumpStrength;
      }
    }
    else {
      //While the player is not grounded, reduce vertical movement by gravity * delta-time.
      currentVerticalForce += gravity * Time.deltaTime;
    }

    movement = new Vector2(horizontalMove, currentVerticalForce);
  }

  void FixedUpdate() {
    //Use MovePosition to move a kinematic Rigidbody2D.
    body.MovePosition(movement);
  }

  bool IsGrounded() {
    //etc...
  }
}